There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another: allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry, agriculture, or laboratory experiments.
Post 2. @Anon91339: A ricer is also a legitimate kitchen tool. You can find references to ricers online, or in any culinary dictionary. My mother used to use a ricer to squeeze pulp from seeds when making plum jam.There are photos online. Ricers as kitchen tools predate automobile Ricers and probably the automobile itself.ost 2. @Anon91339: A ricer is also a legitimate kitchen tool. You can find references to ricers online, or in any culinary dictionary. My mother used to use a ricer to squeeze pulp from seeds when making plum jam.
OXO Potato Ricer. Photo courtesy of Pricegrabber. A potato ricer is a kitchen tool used for pressing cooked potatoes or other soft foods through a bunch of little holes so that the result somewhat resembles grains of rice. potato ricer (here's one) is shaped like a cup or cylinder with small rice-sized perforations at one end and some sort of handle or press for forcing the food through the perforations.